Bihar and MoRTH Sign River Desilting MoU for National Highway Construction

Bihar and the Union Ministry of Road Transport and Highways (MoRTH) signed a memorandum of understanding on 3 November 2026 to link scientific desilting of rivers and water bodies with the use of suitable excavated material in national highway construction. The initiative, described as Nadi Sanjivani, is intended to address sediment accumulation and supply construction material, subject to engineering and environmental safeguards.

What was announced

The agreement was signed in New Delhi in the presence of Union Road Transport and Highways Minister Nitin Gadkari and Bihar Chief Minister Samrat Choudhary, according to the official Press Information Bureau release dated 3 November 2026. It creates a framework for identifying suitable water bodies, assessing sediment, obtaining permissions and coordinating its possible use in highway works.

How much silt could be used

NHAI has identified 243 lakh cubic metres of potentially usable silt for 16 ongoing national highway projects in Bihar. A further 835 lakh cubic metres is proposed for 27 future projects. The future quantity is a proposal, not evidence that excavation, transport or incorporation into roadworks has already occurred. Actual use depends on material suitability and approvals.

Why river silt is being considered

Highway embankments and other earthworks need large volumes of suitable material. Recovering sediment from approved desilting operations could reduce demand for fresh borrow earth and potentially limit disturbance of productive farmland. Separately, well-designed desilting may improve water-carrying capacity in selected water bodies. Neither benefit is automatic: unsuitable excavation can destabilise riverbanks or affect ecosystems, while unsuitable material can compromise road performance.

Technical checks and environmental safeguards

The ministry says sediment must undergo testing against applicable MoRTH specifications and Indian Roads Congress codes before use. Excavation is to be confined to approved locations and technical limits, with protection for river ecosystems, banks, embankments, bridges and nearby structures. Joint measurements, digital records and periodic reconciliation are intended to track quantities excavated, transported and used. These controls matter because the word “silt” describes material of variable composition rather than a guaranteed highway-grade product.

Who will coordinate the work

Bihar’s Road Construction Department is the designated nodal department, supported by a state-level coordination committee. Its remit includes examining proposals, facilitating approvals, monitoring implementation and resolving operational issues. The initiative is linked to Bihar’s Water Sources Restoration and Silt Management Policy, 2026. Project-level implementation will still require the necessary statutory and technical clearances.

Bihar’s national highway construction pipeline

In its 3 November statement, the ministry reported 39 NHAI projects covering approximately 1,561 km under construction in Bihar, with estimated investment of ₹58,340 crore. It also identified 11 proposed projects spanning about 1,982 km and estimated investment of ₹1,85,200 crore. These are ministry-reported portfolio figures at the time of the announcement, not newly completed highways or a list of roads opened to traffic.

What motorists should know

The MoU is an infrastructure and environmental-management development. It does not announce a new road opening, traffic diversion, toll change or construction completion date. Drivers planning a journey should verify actual project and route status separately. Our national highway project-status guide explains the difference between approval, construction and opening; the closures and diversions guide covers travel checks.

How to track the next steps

Useful milestones to watch are the identification of individual desilting sites, published environmental and engineering approvals, material test results, transport and measurement records, and the identification of highway packages that actually use the excavated material. A signed MoU is an enabling arrangement rather than proof that all proposed quantities have been recovered. For road-location terminology, see our guide to chainage and kilometre stones.

Official source

Press Information Bureau, Ministry of Road Transport & Highways, 3 November 2026: Bihar desilting MoU and use of silt in national highway projects. The details above reflect the official announcement, not independently verified field progress.